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Yuri [45]
3 years ago
10

I️ need to find the answer

Mathematics
1 answer:
kolbaska11 [484]3 years ago
8 0
(a) m∠RQS = (1/2)m∠QPR = 37°

(b) m∠QPR = m(arc QR) = 74° . . . . . an arc has the same measure as its central angle
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Okay, Do you know how to find the surface area?
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What is the surface area of a rectangular prism that has dimensions of: Length is 6.5, width is 8, and the height is 3.8
stich3 [128]

Answer:

214.2 units²

Step-by-step explanation:

To find the surface area, we add the area of all the 6 sides.

2(Length x Width) + 2(Length + Width) x height

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5 0
3 years ago
There are 6 pennies, 9 nickels, and 3 dimes in a box. Find the probability of...
valina [46]

Answer:

a) 4/17

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c) 3/34

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Step-by-step explanation:

a) The probability of choosing the first nickel is 9/(9 + 6 + 3) (because there are 9 nickels to choose from and a total of 9 + 6 + 3 = 18 coins to choose from) = 9/18 = 1/2. The probability of choosing the second nickel is 8/17 (because there's no replacement, we have 9 - 1 = 8 nickels remaining to choose from and 18 - 1 = 17 total coins). Multiply these together: (1/2) * (8/17) = 8/34 = 4/17

b) The probability of choosing a nickel is 9/18 (just like above) = 1/2. The probability of choosing a dime is 3/18 (because there are 3 dimes and since there IS replacement, we still have 18 total coins to choose from). Multiplying these, we get: (1/2) * (3/18) = 3/36 = 1/12

c) The probability of choosing a nickel is 9/18 = 1/2. The probability of choosing a dime after that is 3/17 (because there are 3 dimes to choose from, but since there's NO replacement, there are only 18 - 1 = 17 total coins). Multiplying these, we get: (1/2) * (3/17) = 3/34

d) The probability of choosing a penny is 6/18 (because there are 6 pennies) = 1/3. The probability of choosing a nickel next is 9/17 (because there is NO replacement, there are 18 - 1 = 17 total coins remaining). The probability of choosing a second nickel is 8/16 = 1/2 (because there are 17 - 1 = 16 total coins and 9 - 1 = 8 nickels left). Multiplying these, we get: (1/3) * (9/17) * (1/2) = 9/102 = 3/34

Hope this helps!

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4 years ago
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(2/3) (2/3)ayuda hola​
Andrei [34K]

Answer:

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